Tubular heat dispersing structure

ABSTRACT

The present invention discloses a tubular heat dispersing structure which utilizes tubular channel to contact with the heat source(s) and the heat conductor for restricting the heated air. When the flowing air flows into the channel, it is to produce the flowing naturally, and the heated air flows toward the opening rapidly. Therefore, the structure of the present invention can form air flowing actively for achieving the heat dispersing effect. Besides, the structure of the present invention also can have varied geometric shapes and sizes for corresponding to different shapes of different heat sources and heat conductors, so that a better stacked attachment therebetween can be achieved, thereby saving the cost of building the molds and corresponding to the heat dispersing requirements of various power.

FIELD OF THE INVENTION

The present invention is related to a tubular heat dispersing structure,and more particularly to a tubular channel whose inner structure makesthe air therein to produce airflow actively after being heated, so as toincrease the effect of heat dispersing.

BACKGROUND OF THE INVENTION

There are three types of heat transmission, conduction, convection andradiation. Conduction utilizes medium to transmit heat from hightemperature to low temperature, convection is formed by circular flowingof heated liquid (air or water) which is caused by density variation,and radiation can transmit heat without any medium.

For liquid, the major and most effective manner to transmit heat isconvention. Please refer to FIG. 1 and FIG. 2, the conventional heatdispersing structures 1 a, 1 b both employ conduction to perform heatdispersing, so that the structures thereof which have an open-up shapeare formed to be similar to fins 11 a, 11 b or a variation thereof,thereby increasing the surface areas contacting the air with the heatdispersing structure as much as possible in the limited space to enhancethe heat dispersing effect. However, although this kind of heatdispersing structure 1 a, 1 b can effectively disperse the heat, thedispersing of heat, which is absorbed from the heat source and the heatconductor, still has to be achieved by air flowing around the fins 11 a,11 b, so that the chock point of heat dispersing efficiency is the airaround the heat dispersing structure, not the heat dispersing structure1 a, 1 b itself. Therefore, it always further employs other accessories,such as, fan, for increasing the flowing of air, thereby achieving theeffect of heat dispersing.

Hence, the conventional heat dispersing structure is mainlydisadvantageous of:

1. After air around the heat dispersing structure is heated, the densitythereof will be changed, so as to cause disordered air flowingdirection, thereby many disturbances and vortexes in small range formturbulence, which reduces the efficiency of heat dispersing in theconvection manner.

2. The heat from the heat source and the heat conductor are transmittedto fins, and since fins have difficulty to disperse heat immediately,the heat dispersing structure oppositely will cause baking phenomenon.

3. The heat dispersing structure needs to employ external fan forproducing airflow and increasing convection.

4. The heat dispersing structure has an open-up shape which can not beexpanded by stacking or assembling.

SUMMARY OF THE INVENTION

The object of the present invention is to improve the conventional heatdispersing structure, which does not conform to the character of heatconvection of airflow, so as to provide a better heat dispersing effect.

For achieving the object described above, the present invention providesa tubular heat dispersing structure including one or more heatdispersing body, which includes one or more channel therein, wherein thechannel is a closed tube with two opening ends, and the opening ends canbe cut to have different sectional areas for increasing air flowing andchanging the sectional area, and the middle of the channel also can beformed to have heat dispersing holes. Therefore, according to thecharacter of air convection and the principles of hydrodynamics andthermodynamics, the present invention creates a tubular-typed heatdispersing structure.

Theoretically, according to Bernoulli's Law, the smaller the sectionalarea the liquid passes through, the faster the flowing rate of theliquid, so that the opening ends of the present invention can beregarded as the reduced sectional area, and the flowing rate can beincreased.

Moreover, since the heat dispersing medium is air and the heatdispersing manner is convection, through the tubular structure and thefins therein, the produced heat can be gathered in the tube to heat theair therein, so as to change the air pressure inside the tube and causethe air around the opening ends to flow, according to Bernoulli's Law,thereby forming airflow actively. Here, the produced airflow can achieveheat convection, and through the guiding of the tubular channel, theproduction of turbulence can be reduced and the convection efficiencyalso can be enhanced.

Furthermore, for cooperating with the installation and the assembling ofthe heat source and the heat conductor, the structure of the presentinvention can be designed to have corresponding geometric shape and sizefor facilitating the attachment thereto, and even, the heat dispersingbodies also can be stacked together to form expansion module forenhancing the effect of heat dispersing. Thereby saving the cost ofbuilding the molds and corresponding to the heat dispersing requirementsof various power.

Consequently, the present invention is advantageous of:

1. The tubular heat dispersing structure can have heat dispersing holesmounted thereon at positions of better air flowing, so as to enhance airconvection.

2. The tubular heat dispersing structure can effectively guide theflowing of air, so as to reduce turbulence, thereby form an environmentsuitable for air convection.

3. The tubular heat dispersing structure can force the air to flow,which increases heat dispersing efficiency.

4. The tubular heat dispersing structure can be assembled for expansionin accordance with different heat dispersing demands, thereby enhancingthe effect of heat dispersing.

5. The tubular heat dispersing structure can be varied according to thepositions and shapes of the heat source(s) and the heat conductor tohave different geometric shapes and sizes, and even, it can be assembledwith the existing heat dispersing structure for improving the heatdispersing efficiency thereof.

BRIEF DESCRIPTION OF THE DRAWINGS

The foregoing aspects and many of the attendant advantages of thisinvention will be more readily appreciated as the same becomes betterunderstood by reference to the following detailed description, whentaken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a three-dimensional view showing one kind of conventional heatdispersing structure;

FIG. 2 is a three-dimensional view showing another kind of conventionalheat dispersing structure;

FIG. 3A is a three-dimensional view of the present invention;

FIG. 3B is a sectional view of line 3B-3B in FIG. 3A;

FIG. 4 is a schematic view showing the assembling of the presentinvention with single heat source and heat conductor;

FIG. 5 is a schematic view showing the assembling of the presentinvention with plural heat sources and heat conductor;

FIG. 6 is a schematic view showing the right-angled opening and lateralheat dispersing holes of the present invention;

FIG. 7 is a schematic view showing the V-shaped openings and heatdispersing through holes of the present invention;

FIG. 8 is a schematic view showing the vertical-cut opening and thestacking manner of the present invention;

FIG. 9 is a schematic view showing the inclined-cut opening and thestacking manner of the present invention;

FIG. 10 is a schematic view showing the present invention applied to anLED lamp set for heat dispersing in a preferred embodiment;

FIG. 11 is a schematic view showing the expansion module of the presentinvention in a first embodiment;

FIG. 12 is a schematic view showing the expansion module of the presentinvention in a second embodiment; and

FIG. 13 is a schematic view showing the expansion module of the presentinvention in a third embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENT

Please refer to FIGS. 3A, 3B, 4 and 5. When utilizing the tubular heatdispersing structure of the present invention, one or more heat sourcesand heat conductor 3 are attached to the outer circumference of the heatdispersing body 1, and through air convection, the heat from the heatsources and the heat conductor can be taken away. The present inventionincludes one or more heat dispersing body 1, which includes one or morechannel 11 therein, wherein the channel 11 is a hollow tube with asection of closed geometric figure; plural fins 12 mounted on the innersurface of the channel 11 along the longitudinal direction of thechannel 11; and openings 13 respectively mounted at two ends of thechannel 11, so as to form the channel 11 passing through the heatdispersing body 1.

Please refer to FIG. 6 and FIG. 7. When using the tubular heatdispersing structure of the present invention, in accordance with theenvironment and airflow condition, the heat dispersing body 1 can beformed to have a triangle opening 131 or V-shaped opening 132 forenhancing the effect of heat dispersing or sealing. Further, it also canadditional form lateral heat dispersing holes 14 or heat dispersingthrough holes 15 at a position which provides better air flowing, so asto increase heat dispersing effect.

Moreover, as shown in FIG. 8, when the heat source(s) and the heatconductor 3 have more heat dispersing requirements, the heat dispersingbodies 1 with right-angled opening 13 can be stacked together forexpansion, so as to form an expansion module 21. Alternatively, as shownin FIG. 9, the heat source(s) and the heat conductor 3 also can use atapered expansion module 22, which is assembled by heat dispersingbodies 101 with inclined opening 133 and a material of low heatresistance, such as tin.

Please refer to FIG. 10, in this embodiment, the tubular heat dispersingstructure of the present invention is applied to an LED lamp set 31 withheat source and heat conductor 3. After the base of the LED lamp set 31is fixed on the heat dispersing body 1 by locking elements 32, such asscrews, the heat produced by the LED lamp set 31 can be transmitted tothe heat dispersing body 1 and then dispersed by the heat dispersingbody 1 via air convection. Here, through cooperating with another heatdispersing body 102 with lateral-cut opening 134 to form expansionmodule 2, the heat dispersing effect can be enhanced.

Furthermore, please refer to FIG. 11. For cooperating with heatsource(s) and heat conductors 3 of different shapes and sizes, thesection shape of the heat dispersing body 103 also can be varied to haveshapes and sizes of different geometric figures, so that afterassembling by circular stacking and low heat resistance material, suchas tin, plural heat dispersing bodies 103 can form an expansion module23. Alternatively, for cooperating with the heat source(s) and the heatconductor 3, the heat dispersing bodies 104 can be stacked in ahoneycombed manner so as to form an expansion module 24 (as shown inFIG. 12). Besides, if plural heat dispersing bodies 1 and 104 areassembled together by low heat resistance material, such as tin, asshown in FIG. 13, another kind of expansion module 25 can be formed.

It is to be understood, however, that even though numerouscharacteristics and advantages of the present invention have been setforth in the foregoing description, together with details of thestructure and function of the invention, the disclosure is illustrativeonly, and changes may be made in detail, especially in matters of shape,size, and arrangement of parts within the principles of the invention tothe full extent indicated by the broad general meaning of the terms inwhich the appended claims are expressed.

1. A tubular heat dispersing structure, comprising one or more heatdispersing body, which includes one or more channel, wherein the channelis a tube with two openings respectively at two ends thereof andpenetrating the heat dispersing body.
 2. The tubular heat dispersingstructure as claimed in claim 1, wherein the heat dispersing body hasplural fins mounted on the inner surface thereof along the longitudinaldirection of the channel.
 3. The tubular heat dispersing structure asclaimed in claim 1, wherein plural heat dispersing bodies are assembledtogether by stacking to form an expansion module.
 4. The tubular heatdispersing structure as claimed in claim 1, wherein the section shape ofthe heat dispersing body is varied according to the shape of a heatsource and a heat conductor to have a geometric shape and size.